70426640649040 has 40 divisors (see below), whose sum is σ = 176337473320008. Its totient is φ = 26003682700800.

The previous prime is 70426640649007. The next prime is 70426640649059. The reversal of 70426640649040 is 4094604662407.

It can be written as a sum of positive squares in 4 ways, for example, as 4209817582656 + 66216823066384 = 2051784^2 + 8137372^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33858960811 + ... + 33858962890.

Almost surely, 2^{70426640649040} is an apocalyptic number.

It is an amenable number.

70426640649040 is an abundant number, since it is smaller than the sum of its proper divisors (105910832670968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70426640649040 is a wasteful number, since it uses less digits than its factorization.

70426640649040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67717923727 (or 67717923721 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 52.

The spelling of 70426640649040 in words is "seventy trillion, four hundred twenty-six billion, six hundred forty million, six hundred forty-nine thousand, forty".